The Arecibo Response (52.7 KB) added on 17 Jun 2012 244 play times 1 player, Flash, Strategy, Defense, Castle, Alien, Tower, Free

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Game description:

Survive as many levels as possible by buying and upgrading turrets to destroy aliens. Getting rid of aliens makes money which can be invested or spent on upgrading.

Game controls

This game is played by mouse only.

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